1. Create a Python class with a constructor that receives the filename as a parameter, loads the dataset, calculates the SMA for the chosen short-term and long-term moving averages, and generates buy-and-sell signals based on the SMA crossover points.

2. In addition to the methods and attributes needed to implement (1), add a method called "get_investment_summary()" that returns the following values using a JSON format: 1. ROI 2. Cumulative Gain 3. Current Value of Investment

3. Add a comment explaining the best set of moving averages in your code and the rationale behind it.

Dataset

Use the 'stock_assignment_students.csv' file contained in this assignment with the following columns: Date: trading date Open: Open price of the stock High: the highest value the stock reached during that trading day Low: the lowest value the stock reached during that trading day Close: closing price of the stock Adj Close: adjusted closing price of the stock Volume: trading volume for the stock